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Solar popper

Apart from photovoltaic cells, there is another way to produce electricity with the Sun. This technique uses the Sun to heat water or air in a closed tank. High temperatures are reached by using parabolic mirrors which concentrate the Sun's rays. The heat increases the volume of water or air in the ... »
photovoltaic, tank, parabolic, mirrors, rays
Note
Difficulté
Durée3h 0 min.
Date05.11.2013
Langue(s)

Parabolic solar Grill

Building a parabolic solar grill helps to understand the principle of sunlight concentration.   This technique is already used in experimental solar power plants. Parabolic mirrors focus the Sun's rays on black pipes in which water circulates. The heated water expands and turns into steam ... »
parabolic, sunlight, mirrors, rays, pipes
Note
Difficulté
Durée0h 30 min.
Date31.05.2013
Langue(s)

Solar hot water panel

The construction of a solar hot water panel helps to understand how it is possible to heat water with the Sun. The basic principle is to circulate water in a black pipe placed behind a glass exposed to the Sun. Thanks to the greenhouse effect and the black colour that absorbs most of the Sun's rays, it is ... »
circulate, pipe, greenhouse, absorbs, rays
Note
Difficulté
Durée2h 30 min.
Date31.05.2013
Langue(s)

Solar chimney

The use of sun energy is not limited to photovoltaic cells for electricity or solar thermal collectors for heating. Other ideas exist, often still experimental, like the solar chimney. A huge project of this type is planned in Australia with a tower 1 km high!   The construction of a solar chimney ... »
photovoltaic, collectors, chimney, greenhouse, absorption
Note
Difficulté
Durée3h 0 min.
Date16.05.2013
Langue(s)
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